Are all the mufflers you are using the "rolled" type? Are the busting apart at the body? This usually happened from unburnt gas poping inside the muffler. Do you have a Cat on the exhaust system? That will almost always solve that problem. Otherwise, you need to find a good heavy fully welded muffler.

Are all the mufflers you are using the "rolled" type? Are the busting apart at the body? This usually happened from unburnt gas poping inside the muffler. Do you have a Cat on the exhaust system? That will almost always solve that problem. Otherwise, you need to find a good heavy fully welded muffler.

I have no cat and the stock ones were rolled. However only one came apart ot the rolls, another literally exploded, and melted my spings bushings. the magnaflow is nicely welded, but something went wrong inside and its now loud as crap, same thing hapened with my original stock one.

I have no friggen clue how I kill them, especially with my 4 banger. I am gona see what the shop that did my magnaflow can do since he said that I wouldnt kill it, but that was over a year ago. sucks not having a license....

I have no cat and the stock ones were rolled. However only one came apart ot the rolls, another literally exploded, and melted my spings bushings. the magnaflow is nicely welded, but something went wrong inside and its now loud as crap, same thing hapened with my original stock one.

I have no friggen clue how I kill them, especially with my 4 banger. I am gona see what the shop that did my magnaflow can do since he said that I wouldnt kill it, but that was over a year ago. sucks not having a license....

you'r burning fuel in the exhaust . it will melt the CRF (continuous roving fiberglass) in the magnaflow, and other CRF type mufflers. (dynomax ultra flow and cherry bomb types)

4 banger is likely on it's way out. you have the exact problem I had. Be ready for it to start jumping timing.............

it sounds like u got more problems than muffler choice... so id look into that.. but a flow through design will not blow apart like that.. id go with a cherry bomb .. too loud ?? Run 2 ?

Cherry bombs (if its the one I am thinking of) are not trail legal because they are not a spark arrestor. DNR looks for a muffler... they see a nice pipe looking cherry bomb its a no spark arrestor ticket.

BTW are all your mounts in good shape when i was breaking them i think I had a weak mount too. Though if your blowing them right up I have a feeling that like everyone says, your getting unburned fuel in the exhaust

well fawk, the lil bugger seems to run great, never had an issue with it. Been gettin bout 13mpg highway which has actually gone up somehow, I know its not great but seems to be the norm with 33s and stock gears...

well I guess its time t start engine shopping goddamnit, whos got a nice 4.0 and tranny?

Flowmasters are about indestructable. I had a pair mounted under my rockers in my CJ-5. They got beat on trees/muds/dirt for 3 years, barely even dented at all. I think they were actualyl ripped off by trail impacts over a dozen times before I fabbed a better setup. After that, I powerwashed them, and they were nice enough to sell. (sold one, went to signle exhaust with the other)

I'm running a flowmaster 40 series on my Toyota with a 2.4 liter, it sounds pretty nice, actually. Look on Ebay, theres a guy who sells them out of lansing for good prices..